8 Move Checkmate

My dad taught me chess when I was about seven, and he would beat me nearly every time. I was always angry and wanted to learn more, but then i forgot about it and carried on with my 7 year old ways.... Flash forward 8 years, I'm 15, and i found this site 2 months ago, and somehow got a free trial membership. I studied and studied and played nonstop and got good enough that I could beat my dad every time we played. Recently I played him, and I came up with this checkmate.

But if 7...cxd5, you're in big trouble.

yeah, i understood that, but my dad isn't a very analytical player and never was "formally" taught in chess, so I gambled and hoped he was distracted by the bishop and thought I made a dumb move, but yeah, online i would never have achieved this, because i don't know the people online. My dad, on the other hand, i know very well and knew he would make that move.

If you want to make progress in chess you must always assume your opponent is going to make the best move . If you don't you will always remain a beginner . The only variation to this is that if you are in a losing situation you can justifiably play for traps . 

3.Nxd5,  well known opening trap 2...f6 is fatal mistake

3.Nxe5,  not Nxd5, obviously

7. Nf4 Nh6 8. c3 Nf7 9. g3

7... Nxh6 8. Nf4 Qa5+ 9. Ke2 d5

Cool stuff 

Hahaha funny mate

What would be the continuation after 3.Nxe5?

3. Nxe5, fxef5

4. Qg5

4. Qh5, not g5   messed up again

But the best move after 3.Nxe5 is Qe7 not fxe5. So actually Nxe5 is only one good move amoungst a few. The OP's 3.d3 seems too passive however.

after 3... Qe7.  4 Qh5 is still very bad for black

uh, sry, 4Qh5 is not bad for black

That's a really good idea!!

7. ... Nxh6 ??